File: [cvs.NetBSD.org] / src / sys / sys / vfs_syscalls.h (download)
Revision 1.25, Thu Jun 20 03:31:54 2019 UTC (4 years, 9 months ago) by kamil
Branch: MAIN
CVS Tags: netbsd-9-base, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9 Changes since 1.24: +2 -1
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Add mkfifo{,at}(2) mode in mknod{,at}(2) as requested by POSIX
mknod with mode & S_IFIFO and dev=0 shall behave like mkfifo.
Update the documentation to reflect this state.
Add ATF tests.
This is an in-kernel implementation as typically user-space programs use
mkfifo(2) directly, however whenever there is need to bypass libc (like in
valgrind) then portable POSIX software calls the mknod syscall.
Noted on tech-kern@ by Greg Troxel.
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/* $NetBSD: vfs_syscalls.h,v 1.25 2019/06/20 03:31:54 kamil Exp $ */
/*
* Copyright (c) 2007, 2008, 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_VFS_SYSCALLS_H_
#define _SYS_VFS_SYSCALLS_H_
#include <sys/types.h>
#include <sys/fstypes.h>
struct stat;
struct statvfs;
struct quotactl_args;
/*
* syscall helpers for compat code.
*/
/* Status functions to kernel 'struct stat' buffers */
int do_sys_stat(const char *, unsigned int, struct stat *);
int do_sys_statat(struct lwp *, int, const char *, unsigned int, struct stat *);
int do_fhstat(struct lwp *, const void *, size_t, struct stat *);
int do_fhstatvfs(struct lwp *, const void *, size_t, struct statvfs *, int);
/* VFS status functions to kernel buffers */
int do_sys_pstatvfs(struct lwp *, const char *, int, struct statvfs *);
int do_sys_fstatvfs(struct lwp *, int, int, struct statvfs *);
/* VFS status - call copyfn() for each entry */
int do_sys_getvfsstat(struct lwp *, void *, size_t, int, int (*)(const void *, void *, size_t), size_t, register_t *);
int do_sys_utimes(struct lwp *, struct vnode *, const char *, int,
const struct timeval *, enum uio_seg);
int do_sys_utimens(struct lwp *, struct vnode *, const char *, int,
const struct timespec *, enum uio_seg);
int do_sys_utimensat(struct lwp *, int, struct vnode *, const char *, int,
const struct timespec *, enum uio_seg);
struct pathbuf;
int do_open(struct lwp *, struct vnode *, struct pathbuf *, int, int, int *);
int vfs_copyinfh_alloc(const void *, size_t, fhandle_t **);
void vfs_copyinfh_free(fhandle_t *);
int dofhopen(struct lwp *, const void *, size_t, int, register_t *);
int do_sys_linkat(struct lwp *, int, const char *, int, const char *, int, register_t *);
int do_sys_unlink(const char *, enum uio_seg);
int do_sys_rename(const char *, const char *, enum uio_seg, int);
int do_posix_mknodat(struct lwp *, int, const char *, mode_t, dev_t);
int do_sys_mknod(struct lwp *, const char *, mode_t, dev_t, enum uio_seg);
int do_sys_mknodat(struct lwp *, int, const char *, mode_t, dev_t, enum uio_seg);
int do_sys_chmodat(struct lwp *, int, const char *, int, int);
int do_sys_chownat(struct lwp *, int, const char *, uid_t, gid_t, int);
int do_sys_accessat(struct lwp *, int, const char *, int ,int);
int do_sys_mkdir(const char *, mode_t, enum uio_seg);
int do_sys_symlink(const char *, const char *, enum uio_seg);
int do_sys_quotactl(const char *, const struct quotactl_args *);
void do_sys_sync(struct lwp *);
int chdir_lookup(const char *, int, struct vnode **, struct lwp *);
void change_root(struct cwdinfo *, struct vnode *, struct lwp *);
extern const char *const mountcompatnames[];
extern const int nmountcompatnames;
#endif /* _SYS_VFS_SYSCALLS_H_ */